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Java Web Services Developer Pack v1.3

Java Web Services Developer Pack v1.3. Zhongnan Shen 12/04/2003. Outlines. What is WSDP? What ’ s in WSDP? An Example The Coffee Break Application Resources. What is WSDP.

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Java Web Services Developer Pack v1.3

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  1. Java Web Services Developer Pack v1.3 Zhongnan Shen 12/04/2003

  2. Outlines • What is WSDP? • What’s in WSDP? • An Example The Coffee Break Application • Resources

  3. What is WSDP • A free integrated toolkit used to build and test XML applications, Web services, and Web applications with the latest Web service technologies and standards implementations ; • Supports WS-I Basic Profile 1.0; • Can be downloaded at http://java.sun.com/webservices/downloads/webservicespack.html size:26M; platform: windows, unix

  4. What’s in WSDP • Java Architecture for XML Binding (JAXB) v1.0.2; • Java API for XML Processing (JAXP) v1.2.4; • Java API for XML-based RPC (JAX-RPC) v1.1; • SOAP with Attachments API for Java (SAAJ) v1.2; • Java API for XML Registries (JAXR) v1.0.5; • JavaServer Faces (JSF) v1.0 EA4; • JavaServer Pages Standard Tag Library (JSTL) v1.1 EA; • XML and Web Services Security v1.0 EA2; • Java WSDP Registry Server v1.0_06; • Ant Build Tool 1.5.4; • Apache Tomcat v5 development container; • Ws-I Supply Chain Management Sample Application 1.0;

  5. What’s in WSDP • Java Architecture for XML Binding (JAXB) • Providing API and tools for automating the mapping between XML documents and Java objects; • Compiling an XML schema into one or more Java technology classes; • The following operations can be performed: • unmarshal XML content into a Java representation; • access, update and validate the Java representation against schema constraint; • marshal the Java representation of the XML content into XML content.

  6. What’s in WSDP • Java Architecture for XML Binding (JAXB)

  7. What’s in WSDP • Java API for XML Processing (JAXP) • supports processing of XML documents using DOM, SAX, and XSLT; • Document Object Model (DOM): an application programming interface for HTML and XML documents; • Simple API for XML (SAX): a common interface implemented for many different XML parsers; • XSL Transformations (XSLT): a language for transforming XML documents into other XML documents; • supports for XML schema and an XSLT compiler (XSLTC);

  8. What’s in WSDP • Java API for XML-Based RPC (JAX-RPC) • an API for building Web services and clients that use remote procedure calls (RPC) and XML ; • an easy-to-develop programming model for development of SOAP based web services, including web service clients and endpoints; • developers are not exposed to the complexity of SOAP protocol level mechanisms; • support for WSDL->Java and Java->WSDL mapping; • support for SOAP message processing model; • support for document based messaging; • support HTTP level session management and SSL based security mechanisms.

  9. What’s in WSDP • Java API for XML-Based RPC (JAX-RPC)

  10. What’s in WSDP • SOAP with Attachments API for Java (SAAJ) • enables developers to produce and consume messages conforming to the SOAP 1.1 specification and SOAP with Attachments note; • derived from the package originally defined in the JAXM 1.0 specification; • SOAP messages can contain both XML contents and non-XML contents (as attachments); • Messages sent using the SAAJ API are called request-response messages;

  11. What’s in WSDP • SOAP with Attachments API for Java (SAAJ)

  12. What’s in WSDP • Java API for XML Registries (JAXR) • provides a uniform and standard Java API for accessing different kinds of XML Registries; • ebXML Registry and Repository standard; • Universal Description, Discovery, and Integration (UDDI); • JAXR enables Java software programmers to use a single, easy-to-use abstraction API to access a variety of XML registries. A unified JAXR information model describes content and metadata within XML registries;

  13. What’s in WSDP • Java API for XML Registries (JAXR)

  14. What’s in WSDP • JavaServer Faces Technologies • a server-side user interface framework for Java technology-based Web applications ; • Main components include: • A set of APIs for: representing UI components and managing their state; handling events and input validation; defining page navigation; supporting internationalization and accessibility . • A JavaServer Pages (JSP) custom tag library for expressing UI components within a JSP page.

  15. What’s in WSDP • JavaServer Faces Technologies

  16. What’s in WSDP • JavaServer Pages Standard Tag Library (JSTL) • encapsulates core functionality common to many JSP applications; <c:forEach var="item" items="${sessionScope.cart.items}"> ... <tr> <td align="right" bgcolor="#ffffff"> ${item.quantity} </td> ... </c:forEach>

  17. What’s in WSDP • JavaServer Pages Standard Tag Library (JSTL)

  18. What’s in WSDP • XML and Web Services Security • Transport-Level Security security is addressed by the transport layer. • Basic Authentication with JAX-RPC; • Client-Certificate Authentication over HTTP/SSL with JAX-RPC; • Message-Level Security security information is contained within the SOAP message.

  19. What’s in WSDP • Java WSDP Registry Server • The Java Web Services Developer Pack (Java WSDP) Registry Server implements Version 2 of UDDI; • provide a UDDI registry for Web services in a private environment; • use it with the Java WSDP APIs as a test registry for Web services application development.

  20. An Example • The Coffee Break server obtains the • coffee varieties and their prices by • querying distributors at startup and • on demand. • The Coffee Break server uses SAAJ messaging to communicate with one of its distributors. • The Coffee Break server uses JAXR to send a query searching for coffee distributors that support JAX-RPC to the Registry Server. • The Coffee Break server requests price lists from each of the coffee distributors. • The Coffee Break server forwards • suborders to each distributor to get • confirmations. • Coffee Break Application

  21. An Example-Coffee Break • JAX-RPC Distributor Service • Service side • Service Interface public interface SupplierIF extends Remote { public ConfirmationBean placeOrder(OrderBean order) throws RemoteException; public PriceListBean getPriceList() throws RemoteException; } • Publishing the Service in the Registry JAXRPublisher publisher = new JAXRPublisher(); publisher.makeConnection(queryURL, publishURL); String key = publisher.executePublish(username, password, endpoint);

  22. An Example-Coffee Break • JAX-RPC Distributor Service • Client side • Building the Static Stub Client; Clients makes remote call through a stub, a local object which acts as a proxy for the remote service. wscompile -gen:client -d build -classpath build config-wsdl.xml -gen:client flag instructs wscompile to generate the stubs; -d: flag tells the tool to write the output to the build subdirectory; config-wsdl.xml file: specifies the location of the WSDL file; • Invoking the remote method PriceListBean priceList = PriceFetcher.getPriceList(distributor);

  23. An Example-Coffee Break • SAAJ Distributor Service • SAAJ Service • Returning the Price List public void doPost(HttpServletRequest req, HttpServletResponse resp) { …Analyze the request… …Compose the message… OutputStream os = resp.getOutputStream(); reply.writeTo(os); os.flush(); } • Returning the Order Confirmation

  24. An Example-Coffee Break • SAAJ Distributor Service • SAAJ Client SOAPConnectionFactory scf = SOAPConnectionFactory.newInstance(); SOAPConnection con = scf.createConnection(); …… Compose the request …… SOAPMessage response = con.call(request, endpoint);

  25. An Example-Coffee Break • Coffee Break Server The Coffee Break Server uses servlets, JSP pages, and JavaBeans components to dynamically construct HTML pages for consumption by a Web browser client. • RetailPriceListServlet & RetailPriceList • The RetailPriceListServlet responds to requests to reload the price list; • Component RetailPriceList • Discovering the JAX-RPC Service JAXRQueryByName jq = new JAXRQueryByName(); connection = jq.makeConnection(queryURL, publishURL); jq.executeQuery(queryString); • Query JAX-RPC service and SAAJ service • CheckoutFormBean submits suborders to each distributor

  26. Resources • Java Web Services Developer Pack 1.3 dowload: http://java.sun.com/webservices/downloads/webservicespack.html Tutorial: http://java.sun.com/webservices/docs/1.3/tutorial/doc/index.html Sample Applications: http://java.sun.com/webservices/docs/1.3/wsi-sampleapp/index.html

  27. Thanks for Listening

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